The BGP Instability Report


The BGP Instability Report is updated daily. This report
was generated on 16 May 2012 06:15 (UTC+1000)


50 Most active ASes for the past 7 days

RANKASN             UPDs            %PrefixesUPDs/PrefixAS NAME
147551576895.60%162197.28TATACOMM-AS TATA Communications formerly VSNL is Leading ISP
298291071673.80%128383.53BSNL-NIB National Internet Backbone
3179081008153.58%829121.61TCISL Tata Communications
48402668272.37%214331.18CORBINA-AS OJSC "Vimpelcom"
517488413121.47%73056.59HATHWAY-NET-AP Hathway IP Over Cable Internet
69583322231.14%116327.71SIFY-AS-IN Sify Limited
745528295051.05%50858.08TDN Tikona Digital Networks Pvt Ltd.
87029288991.03%35698.10WINDSTREAM - Windstream Communications Inc
924560274730.97%102726.75AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services
1012479268420.95%67939.53UNI2-AS France Telecom Espana SA
1132528252080.89%112291.64ABBOTT Abbot Labs
1225620237260.84%184128.95COTAS LTDA.
1317439221130.78%193114.58NETMAGIC-AP Netmagic Datacenter Mumbai
148452208360.74%131015.91TE-AS TE-AS
1518207207420.74%50640.99YOU-INDIA-AP YOU Broadband & Cable India Ltd.
1624193200180.71%28171.24SIFY-IN Sify Limited Service Provider India
1717762186420.66%25174.27HTIL-TTML-IN-AP Tata Teleservices Maharashtra Ltd
1813118182670.65%48380.56ASN-YARTELECOM OJSC Rostelecom
195800181960.65%25870.53DNIC-ASBLK-05800-06055 - DoD Network Information Center
207633178570.63%19890.19SOFTNET-AS-AP Software Technology Parks of India - Bangalore
211785177510.63%19079.31AS-PAETEC-NET - PaeTec Communications, Inc.
2217465175230.62%22079.65ASIANET Cable ISP in India
2310620152490.54%18698.16Telmex Colombia S.A.
2410201139910.50%36238.65DWL-AS-IN Dishnet Wireless Limited. Broadband Wireless
2545769138410.49%21364.98DVOIS-IN D-Vois Broadband Pvt Ltd
2617803131180.47%60321.75BSES-AS-AP BSES TeleCom Limited
2724722130260.46%72180.92BABILON-AS Babilon-T
2826615126510.45%90314.01Tim Celular S.A.
2945271124830.44%25548.95ICLNET-AS-AP 5th Floor, Windsor Building, Off: CST Road
308151124650.44%14948.34Uninet S.A. de C.V.
3110199124380.44%113110.07TATA-AS Tata Communications Ltd
3217447123540.44%122101.26NET4INDIA Net4India Ltd.
3318747122600.44%38931.52IFX-NW - IFX Communication Ventures, Inc.
3445820114820.41%18661.73TTSL-MEISISP Tata Teleservices ISP AS
35383113330.40%109103.97AFCONC-BLOCK1-AS - 754th Electronic Systems Group
3611664109610.39%25942.32Techtel LMDS Comunicaciones Interactivas S.A.
377552108220.38%11799.18VIETEL-AS-AP Vietel Corporation
3836167103280.37%10499.31NETRIPLEX01 - NETRIPLEX LLC
394479899980.35%19998.00PERVOMAYSK-AS PP "SKS-Pervomaysk"
401797499710.35%19255.18TELKOMNET-AS2-AP PT Telekomunikasi Indonesia
41292810.33%11282.87DCN-AS - University of Delaware
421822990700.32%9892.55CTRLS-AS-IN CtrlS Datacenters Ltd.
432857389990.32%19044.73NET Servicos de Comunicao S.A.
445544188450.31%87101.67TATA-DOCOMO-AS-AP D 26/2 TTC INDUSTRIAL AREA MIDC SANPADA
451002987830.31%27032.53SPECTRANET FIRST FIBRE BROADBAND NETWORK IN NEW DELHI, INDIA
461113987420.31%55615.72CWRIN CW BARBADOS
47127384410.30%29828.33CW Cable and Wireless Worldwide plc
483691581090.29%34238.50AFOL-KE-AS
492773881020.29%55014.73Ecuadortelecom S.A.
50962580280.28%10377.94PACIFIC-INTERNET-INDIA-ASN Pacific Internet India Pvt. Ltd.
Total 116480241.32%

50 Most active ASes for the past 7 days

RANKASN             UPDs/Prefix         %PrefixesUPDs   AS NAME
1447989998.00.35%19998PERVOMAYSK-AS PP "SKS-Pervomaysk"
2325286302.00.89%1125208ABBOTT Abbot Labs
3166525802.00.21%15802RISEUP - Riseup Networks
4573435522.00.20%15522DIGIMAT-AS Digimat s.r.l.
531998.00.07%11998MIT-GATEWAYS - Massachusetts Institute of Technology
6207751922.00.07%11922GETIT GETIT Internet GmbH
772191547.00.05%11547ASNTULIX - Tulix Systems, Inc.
836948994.50.07%21989KENIC
955665939.00.03%1939STMI-AS-ID PT Sampoerna Telemedia Indonesia
1017408902.00.03%38902ABOVE-AS-AP AboveNet Communications Taiwan
1140677898.50.06%21797GLOBALAIR-COM - Globalair.com
1221452878.00.03%1878skannet-ibadan
1313263807.00.06%231614HAYATNET-AS HayatNet Bilgi ve Iletisim Hizmetleri A.S
1429126763.00.03%1763DATIQ-AS Datiq B.V.
1519045756.00.05%21512DIRECTCOM - Direct Communications Cable LLC
169821718.00.03%1718DOST-PH-AP Department of Science and Technology
1732890648.60.16%114540BTC-AS-1 - Beehive Telephone Company, Inc.
1849182601.00.04%41202BTENGAGEIT BT ENGAGE IT Limited
1942281556.00.02%1556RACHFAHL-IT-AS Rachfahl IT-Solutions GmbH & Co.KG
201355554.00.02%3554AHMSI-HQDC - American Home Mortgage Servicing, Inc.
215430533.20.15%94266FREENETDE freenet Datenkommunikations GmbH
2248068508.00.02%3508VISONIC Visonic Ltd
2333074505.00.02%1505ISC-NBO1 Internet Systems Consortium, Inc.
2457767489.00.02%1489RTTC-AS Federal State-owned Enterprise Russian Television and Radio Broadcasting Network
2527169477.00.02%2477TRIDENTAS - Trident Systems, Inc.
264658474.50.03%10949NETFRONT-AS Netfront Information Technology Limited,
2749072474.00.02%1474APSUARA-AS TCA Apsuara Ltd.
2838857462.00.03%2924ESOFT-TRANSIT-AS-AP e.Soft Technologies Ltd.
2937349458.00.03%2916Aptus
3020799443.80.17%114882DATANET-AS Datanet.co.uk Ltd
3125911437.00.02%1437TALISMAN-CH3 - TALISMAN ENERGY INC.
3257201429.00.02%1429EDF-AS Estonian Defence Forces
3337115427.00.02%1427TMP-UG
3444257386.50.03%9773TNGS-SOUTH JSC Regional Technical Centre
3537086385.00.01%1385SOCATEL-AS
3613118380.60.65%4818267ASN-YARTELECOM OJSC Rostelecom
3712479357.90.95%67926842UNI2-AS France Telecom Espana SA
3828477320.80.11%103208UNIVERSIDAD AUTONOMA DEL ESTADO DE MORELOS
3957912284.00.01%1284ASYST-AS Asyst EOOD
4017815281.00.03%3843QUESTDIAGNOSTICS-AS-IN Quest Diagnostics India
4154525267.00.01%1267AGT01 - APPLIED GLOBAL TECHNOLOGIES, LLC
4237420262.00.02%2524UNIV-JOS
4324080261.00.01%1261ROSEITS-AS-IN Rose IT Solutions
4438594257.00.01%1257INNODATA-NDA-AS-IN Innodata-ISOGEN, Inc
4548435251.00.01%1251RAHOVA-AS Pro Net-Rahova SRL
4650457251.00.04%101004ITA It-afdelingen a/s
4728717249.30.09%102493ZENSYSTEMS-AS Zen Systems
4815859248.00.01%1248DSRACK DSRack ApS
4944134248.00.02%2496BOLIGNET-AS Bolignet Autonomous System
503248.00.01%
Total 54162.25.06%

50 Most active Prefixes for the past 7 days

RANKPREFIX           UPDs            %Origin AS -- AS NAME
1109.161.64.0/19181260.61%13118 -- ASN-YARTELECOM OJSC Rostelecom
2130.36.34.0/24125990.42%32528 -- ABBOTT Abbot Labs
3130.36.35.0/24125990.42%32528 -- ABBOTT Abbot Labs
491.202.212.0/2299980.34%44798 -- PERVOMAYSK-AS PP "SKS-Pervomaysk"
541.43.147.0/2498690.33%8452 -- TE-AS TE-AS
662.36.252.0/2280560.27%12479 -- UNI2-AS France Telecom Espana SA
762.36.249.0/2464650.22%12479 -- UNI2-AS France Telecom Espana SA
862.36.241.0/2460640.20%12479 -- UNI2-AS France Telecom Espana SA
962.36.210.0/2459110.20%12479 -- UNI2-AS France Telecom Espana SA
10199.254.238.0/2458020.19%16652 -- RISEUP - Riseup Networks
1191.231.179.0/2455220.19%57343 -- DIGIMAT-AS Digimat s.r.l.
12194.63.9.0/2451900.17%1273 -- CW Cable and Wireless Worldwide plc
13182.64.0.0/1646050.15%24560 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services
14202.56.215.0/2436220.12%24560 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services
1569.54.109.0/2428630.10%7018 -- ATT-INTERNET4 - AT&T Services, Inc.
16115.170.128.0/1724550.08%4847 -- CNIX-AP China Networks Inter-Exchange
18217.194.224.0/2019220.06%20775 -- GETIT GETIT Internet GmbH
19215.65.61.0/2418120.06%5800 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center
20205.175.209.0/2417940.06%40677 -- GLOBALAIR-COM - Globalair.com
21208.54.82.0/2416330.05%701 -- UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
2238.101.217.0/2415470.05%7219 -- ASNTULIX - Tulix Systems, Inc.
23221.120.230.0/2414780.05%17557 -- PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
2469.31.106.0/2314590.05%35994 -- AKAMAI-AS - Akamai Technologies, Inc.
25128.74.28.0/2413980.05%8402 -- CORBINA-AS OJSC "Vimpelcom"
2623.65.27.0/2413730.05%35994 -- AKAMAI-AS - Akamai Technologies, Inc.
2723.2.6.0/2313730.05%35994 -- AKAMAI-AS - Akamai Technologies, Inc.
28200.119.200.0/2113150.04%25620 -- COTAS LTDA.
29190.186.88.0/2113140.04%25620 -- COTAS LTDA.
30190.186.28.0/2213120.04%25620 -- COTAS LTDA.
31201.222.125.0/2412950.04%25620 -- COTAS LTDA.
32201.222.69.0/2412950.04%25620 -- COTAS LTDA.
33201.222.68.0/2412950.04%25620 -- COTAS LTDA.
34201.222.99.0/2412950.04%25620 -- COTAS LTDA.
35201.222.66.0/2412950.04%25620 -- COTAS LTDA.
36190.186.80.0/2412940.04%25620 -- COTAS LTDA.
37190.186.40.0/2412940.04%25620 -- COTAS LTDA.
38205.94.64.0/2012220.04%3475 -- DNIC-AS-03475 - Navy Network Information Center (NNIC)
3995.129.188.0/2212000.04%49182 -- BTENGAGEIT BT ENGAGE IT Limited
40198.32.67.0/2411950.04%36948 -- KENIC
41144.105.244.0/2311520.04%6034 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center
42148.208.231.0/2410450.04%8151 -- Uninet S.A. de C.V.
43148.208.230.0/2410450.04%8151 -- Uninet S.A. de C.V.
44200.119.192.0/2110010.03%25620 -- COTAS LTDA.
45190.186.184.0/2110000.03%25620 -- COTAS LTDA.
46190.186.176.0/2110000.03%25620 -- COTAS LTDA.
47202.81.224.0/199470.03%4658 -- NETFRONT-AS Netfront Information Technology Limited,
48103.10.148.0/249390.03%55665 -- STMI-AS-ID PT Sampoerna Telemedia Indonesia
4980.250.32.0/229150.03%21452 -- skannet-ibadan
37106 -- ODUA-AS
5046.20.194.0/239080.03%24722 -- BABILON-AS Babilon-T
Total 1641065.46%

7 Day BGP Profile: 9-May-2012 00:00 - 15-May-2012 23:59 (UTC+1000)

Number of BGP Update Messages:  1050445
Number of Prefix Updates:  2818123
Number of Prefix Withdrawals:  165279
Average Prefixes per BGP Update:  2.84
Average BGP Update Messages per second:  1.52
Average Prefix Updates per second:  4.32
Peak BGP Update Message Rate per second:  1434  (01:39:30 Thu, 10-May-2012)
Peak Prefix Update Rate per second:  1153  (22:00:43 Tue, 8-May-2012)
Peak Prefix Withdraw Rate per second:  5361  (01:25:58 Thu, 10-May-2012)
Prefix Count:  420746
Updated Prefix Count:  175403
Stable Prefix Count:  245343
Origin AS Count:  41122
Updated Origin AS Count:  21103
Stable Origin AS Count:  20019
Unique Path Count:  209873
Updated Path Count:  129870
Stable Path Count:  80003


 

Hourly Average of Per-Second Updated and Withdrawn Prefix Rate

Hourly Peak of Per-Second Updated and Withdrawn Prefix Rate

Hourly Average Per-Second Updated Prefix Rate by Update Type

Hourly Peak of Per-Second Updated Prefix Rate by Update Type

 

BGP Table Activity

Cumulative Distribution of per-Prefix and per-AS Updates


Notes

The data has been gathered using a single eBGP peering with AS 131072. The observations of BGP path change are relative to this observation point. The updates are generated by a Quagga BGP implementation providing a timestamped log of incoming update messages. The timezone of this monitoring point is UTC+1000. Updates are processed on a 24 hour cycle.